Axle-lubricator



(No Model.)

F. W. WURSTER.

AXLE LUBRIOATOR.

Patented Jan. 25, 1887.

. with the valve-chamber without oil-tight UNITED STATES PATENT ()FFICEt FREDERICK w. wURsTER, or BnooKLYN, NEW YORK.-

AXLE-LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 356,519. dated January 1887.

Application ma 0&1018? 21, was. Serial x0. 211,324. (so model.)

1'0 all whom; it may concern.- Beit known that I, FREDERICK W. WURs- Tau, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Axle-Lubricator, of which the following is a full, clear, and exact description.

-My invention relates to that class of axlelubricators in which the axle is provided with a valve-chamber connected by a suitable oilduct with the interior of the axle-box, theselfacting valvcin said chamber opening inwardly and being adapted to be pushed inward by the nozzle of an oil pump or injector in oil-tight connection with the valve-chamber.

The object of the invention is to so arrange the valve-chamber in relation to the axle that said chamber will be at all times in absolutely connection with the interior of the axle-box, and that the injector-nozzle may be quickly placed in a similarly-tightcounection necessitating the employment of an independent coupling device.

To this end the invention consists, principally, in locating the chamber with its valve, as above described, in a recess formed in the outer end of the axlespindle, the recess being connected by an oil-duct with the axle-box interior.

The-inventioualso consists in forming said valve-containing recess at its outer end withaccompanying drawings,

forming part-of this specification,

, in which-similar letters of reference indicate corresponding parts, in both the figures.

Figure 1- is alongitudinal section of an axle and attached oil-pump having my improvements applied thereto, and Fig. 2. is a crosssectional. view on the line a: a, Fig. 1.

' A isthe axle-spindle, B the axle-box, and o the axle-nut, all of the usual description.

In carrying out my invention, I form in the extreme outer end of the axle-spindle A, by boringonotherwisc, a central tubular recess, I D, which is connected by a centrally-drilled oi] duct or passage, E, and its branch duct,with the usual shallow groove, 1", in the surface of the spindle. v The end recess, 1), is preferably formed with an internal thread to engage an external thread formed on the valve box or chamber G, which may be screwed to its seat in said recess by means of a screw-driver inserted in a transverse slot (not shown) in its outer end; or the recess D may be made slightly tapering and the smooth-faced valvebox driven directly to its seat therein.

The valve box or chamber G may be of the usual description, carrying a springpressed conical valve, H, fitted to a corresponding seat in the valve-box, and adapted to be pushed inward and opened by a perforated and notched nib, I, onthe pump or injector nozzle J, entering the supply-orifice in said valvebox. The outer part of the spindle-recess G is also internally threaded to engage the external thread on the pump-nozzle J, which when theaxle is to be oiled is screwed into said recess against the end of the valve box or chamber G, packing K, of suitable material, being preferably carried by the end of the nozzle J to render the joint oil-tight.

In order that the nozzle or discharge end J of'the pump-barrel L may be easily rotated for screwing it into the valve-containing 'recess G in the axle-spindle, I mount said barrel L, with which the nozzle J may be intogrally formed, or to which it may be rigidly attached, as hereinafter described, to turn loosely in a tube or' cylinder, M, soldered or otherwise secured lengthwise along the top of the pump-reservoir N, or formed integrally therewith, the nozzle being. provided with a milled hand-disk, O, for turning it. e

For convenience of construction, I form the hand-disk O' integrally with the nozzle J, which is made of a somewhat larger diameter than the rest of the pump-barrel L, and is screwed rigidly thereon, the end of the barrel proper forming an annular shoulder or seat, L, for the valve P, which opens outward, its closing-spring. bearing against the annular shoulder Q,carrying the perforated nib I. The nozzle J may, however, be formed integrally with the bodyof 'the barrel L, if desired, the -slmillder L being turned or otherwise formed therein. The forward end of the barrel-conta'ining tube or cylinder M projects somewhat beyond the end of the lump-reservoir N, in orderto 'allowroom for turning the .handdiskO. e

In the rear part of the p u m p oriujcctor barrel L is fitted and works the piston or plunger R, provided with asuitable handle for operating it. Connection bet-ween the pump-barrel L and the'oil in the reservoir N is established 1:5 by means of a vertical t ubc,S, screwed into the underside of the barrel-holdingcylinder M, and an inlet-orifice, '.l,,formed in the-barrel and adapted to register with the end of the supply-tube B, an annular groovc, T, being cut around the barrel in line with said tube S, sothat however the barrel. is turned connection is made between the supply-tube S and the inlet-orifice '1.

In the upper end of the tube S is held an upwardly-opening valve, U, held upon its seat in said tube by a coiled spring, U. The pump-reservoir N is provided with a slide-covered opcning,.V, through which the oil .is introduced forfilling the reservoir.

When the axle is to be oiled, the pump-11oz zle is connected with the valve-chamber-G,as above described, and the'plunger R operated in the usual' manner, when the oil will he forcedtthrong-h the several oil-passages in the axle-spindle into the interior of the axle-box,

thoroughly lubricating the same.

Heretofore the valve-chamber (i has been attached to'the axle-nut and an oil-duct drilled through the nut and the axle-spindle. \Vith 40 this arrangement the oil forced into the valvechamber under pressure almost certain to escape between the nut and the'axle and box, while an independent coupling device was necessitated for connecting the pn nip-nozzle with 5 the oil-chamber. t I

In my improved construction the oitchamher is placed in direct oil-tight connection with' box or chamber in said recess, a self-closing 6n valve in said valve box or chamber opening inward, and an oil pump or injector arranged to be placed in oil tight connection with said valve-chambcr,-aml provided with a dischargenozzle adapted to push said valve inward,sub- '65 stantially as shown and described. 1 v.

' 2. The combination,with the axle-spindle A,'t'ormcd in its outer end with theinternallythreaded recess I), and theaxlebox ll, having its interior connected by an oil-duct with, the recess D, of a valve box or cbamberin said reccss I), an inwanlly-opening valve in said box orchamher, and an oil pump or injector provided with an externally threaded nozzle adapted to be screwed into said threaded reccss D, substantially as'hcrein' shown and described.

' 3. The combination, with the axle-spindle A, formed in its outer endwith the internallythreaded recess D, and theaxlc-box B.having its interior connected with said recess D byan oil-duct, F, of avalve in said recess opening. inward, and an oil pump or injector provided with an extermtlly-thn-adcd nozzle adapted to be screwed into said recess l),sa,id nozzle being mounted to turn l'rccl y on the oil-pump reser-' voir, substantially as specified.-

Witnesses; WILLIAM 0. Frrcn, C. L. BURGER. 

